3 ms·I think cosmic radiation over several years is enough to degradate the material.by darkhorn 7y agoI think cosmic radiation over several years is enough to degradate the material.em-bee 7y agoif they claim it's going to last that long, then they surely have taken that into account.Tharkun 7y agoThe article makes claims to the contrary: > The discs are not affected by cold temperatures, or cosmic radiation.